Demand for sessions increased rapidly, and RAINN responded by expanding the service.
Since 2008 the Online Hotline has been available 24/7 to help those affected by sexual violence.
The app's bold slogan is "Tinder minus marriage-minded daters." Given Casualx's more risqué selling point, there are additional safety features built in, such as a pattern lock that only you know the sequence to unlock.
The app also promises that it reviews each profile manually which may be feasible with smaller numbers of users, but has us questioning what it will do as it grows larger.
Anyone affected by sexual assault, whether it happened to you or someone you care about, can find support from online.